Devrim Erdem (devrim++at++infotron-tr.com)
Tue, 15 Jun 1999 15:26:15 +0300
> Devrim Erdem wrote:
> >
> > Hi,
> >
> > I have to determine the number of channels to draw a 130 degrees hor. FOV
> > view. Is there a math model to compute the distortion caused by rendering
> > large FOV to a channel ?
>
> There is no distortion for the correct display system. See my
> presentation in the whitepapers section of the performer web pages.
>
> The image when displayed on a rectangular screen and viewed from the
> correct vantage point will reproduce the virtual environment as oriented
> with the modelview matrix.
OK. These messages have been pretty explanative for me. So if I have a rectangular
display which is 110x50 or sth like that and I render a channel that 110x50 degrees
onto this display I shall not meet a major distortion. Is this right ?
>
>
> Problems arise when you try and do something else, like display the
> image on a cylindrical screen.
>
> Look through this presentation:
>
> http://www.sgi.com/software/performer/presentations/geometry/index.htm
>
> Sorry that it suffers from few words, it really needs my voiceover, but
> I hope there's enough there to push you in the right direction.
>
> If not please repost with a description of your display.
>
> Cheers,Angus.
--
/*===============================================
M. Devrim Erdem devrim++at++infotron-tr.com
Senior Engineer
Simulation Software Development
info(+)TRON, Turkey
http://www.infotron-tr.com
http://abone.turk.net/mderdem
===============================================*/
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